A compact shape and size wideband microstrip feed planner antenna is proposed for Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (Wi-MAX) applications. The designed antenna has a rectangular slot with a pair of inverted L, symmetrical U, and two rectangular shaped slots. The proposed antenna has frequencies for 3 WLAN (5.2/5.8 GHz) and Wi-MAX (3.5/5.5 GHz). The antenna size is reduced to (15 x 15 x 1.6 mm ) for wideband. The designed and simulated antenna covered frequency band of 3.19- 8.0 GHz, while rejecting all frequencies which are not desired. Omni-directional radiation pattern and desired gain are obtained in the operating range of frequency.